Calibrachoa plant named ‘Duecahulgo’

ABSTRACT

A new and distinct cultivar of  Calibrachoa  plant named ‘Duecahulgo’, characterized by its compact, semi-upright and outwardly spreading to trailing and decumbent plant habit; freely branching habit; early and freely flowering habit; large orange-colored flowers with brownish red-colored centers and venation; and good garden performance.

Botanical designation: Calibrachoa sp.

Cultivar denomination: ‘DUECAHULGO’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Calibrachoa plant, botanically known as Calibrachoa sp. and hereinafter referred to by the name ‘Duecahulgo’.

The new Calibrachoa plant is a product of a planned breeding program conducted by the Inventor in Rheinberg, Germany. The objective of the breeding program is to create new compact Calibrachoa plants with large and uniquely attractive flowers.

The new Calibrachoa plant originated from a cross-pollination made by the Inventor in June, 2012 in Rheinberg, Germany of a proprietary selection of Calibrachoa sp. identified as code number A11-2664-002, not patented, as the female, or seed, parent with a proprietary selection of Calibrachoa sp. identified as code number A10-3125-003, not patented, as the male, or pollen, parent. The new Calibrachoa plant was discovered and selected by the Inventor as a single flowering plant from within the progeny of the stated cross-pollination in a controlled greenhouse environment in Rheinberg, Germany in May, 2014.

Asexual reproduction of the new Calibrachoa plant by vegetative terminal cuttings in a controlled greenhouse environment in Rheinberg, Germany since June, 2014 has shown that the unique features of this new Calibrachoa plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Calibrachoa have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Duecahulgo’. These characteristics in combination distinguish ‘Duecahulgo’ as a new and distinct Calibrachoa plant:

-   -   1. Compact, semi-upright and outwardly spreading to trailing and         decumbent plant habit.     -   2. Freely branching habit.     -   3. Early and freely flowering habit.     -   4. Large orange-colored flowers with brownish red-colored         centers and venation.     -   5. Good garden performance.

The new Calibrachoa can be compared to plants of the female parent selection. Plants of the new Calibrachoa differ primarily from plants of the female parent selection in flower color as plants of the female parent selection have apricot-colored flowers.

The new Calibrachoa can be compared to plants of the male parent selection. Plants of the new Calibrachoa differ primarily from plants of the male parent selection in flower color as plants of the male parent selection have salmon-colored flowers.

Plants of the new Calibrachoa can also be compared to plants of Calibrachoa sp. ‘Celebration Corona’, not patented. In side-by-side comparisons, plants of the new Calibrachoa differed primarily from plants of ‘Celebration Corona’ in the following characteristics:

-   -   1. Plants of the new Calibrachoa were larger than plants of         ‘Celebration Corona’.     -   2. Plants of the new Calibrachoa were more freely branching, had         shorter internodes and were denser and fuller than plants of         ‘Celebration Corona’.     -   3. Plants of the new Calibrachoa had longer and narrower leaves         than plants of ‘Celebration Corona’.     -   4. Plants of the new Calibrachoa were more freely flowering than         plants of ‘Celebration Corona’.     -   5. Plants of the new Calibrachoa had larger flowers than plants         of ‘Celebration Corona’.     -   6. Plants of the new Calibrachoa and ‘Celebration Corona’         differed in flower color as plants of ‘Celebration Corona’ had         lighter orange-colored flowers.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying colored photograph illustrates the overall appearance of the new Calibrachoa plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photograph may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Calibrachoa plant.

The photograph is a side perspective view of a typical flowering plant of ‘Duecahulgo’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations, measurements and values describe plants grown during the summer in 10.5-cm containers in a glass-covered greenhouse in Rheinberg, Germany and under cultural practices typical of commercial Calibrachoa production. During the production of the plants, day and night temperatures averaged 18° C. and light levels averaged 4,500 lux. Rooted young plants were pinched one time three weeks after planting and were 13 weeks old when the photograph and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Calibrachoa sp. ‘Duecahulgo’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Calibrachoa sp. identified as code number A11-2664-002, not             patented.         -   Male, or pollen, parent.—Proprietary selection of             Calibrachoa sp. identified as code number A10-3125-003, not             patented. -   Propagation:     -   -   Type.—By vegetative cuttings.         -   Time to initiate roots, summer.—About five days at             temperatures about 20° C.         -   Time to initiate roots, winter.—About seven days at             temperatures about 20° C.         -   Time to produce a rooted young plant, summer.—About three             weeks at temperatures about 20° C.         -   Time to produce a rooted young plant, winter.—About four             weeks at temperatures about 20° C.         -   Root description.—Fine, fibrous; typically white in color,             actual color of the roots is dependent on substrate             composition, water quality, fertilizers, substrate             temperature and age of roots.         -   Rooting habit.—Freely branching; dense. -   Plant description:     -   -   Plant and growth habit.—Compact, semi-upright and outwardly             spreading to trailing and decumbent plant habit; freely             branching habit with about eleven primary lateral branches             developing per plant; pinching enhances branching; dense and             full appearance; vigorous growth habit; moderate growth             rate.         -   Plant height.—About 20.5 cm.         -   Plant diameter.—About 81 cm. -   Lateral branch description:     -   -   Length.—About 41 cm.         -   Diameter.—About 3.5 mm.         -   Internode length.—About 2.2 cm.         -   Strength.—Strong.         -   Aspect.—Initially upright to outwardly spreading to trailing             and decumbent.         -   Texture.—Pubescent.         -   Color.—Close to 144A and 147C. -   Leaf description:     -   -   Arrangement.—Before flowering, alternate, and after             flowering, opposite; simple.         -   Length.—About 3.4 cm.         -   Width.—About 9.4 mm.         -   Shape.—Oblanceolate.         -   Apex.—Rounded.         -   Base.—Cuneate.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Pubescent.         -   Luster, upper and lower surfaces.—Matte.         -   Venation pattern.—Pinnate; arcuate.         -   Color.—Developing leaves, upper surface: Close to 137B.             Developing leaves, lower surface: Close to 137C. Fully             expanded leaves, upper surface: Close to 137A; venation,             close to 144B. Fully expanded leaves, lower surface: Close             to 137B; venation, close to 144C.         -   Petioles.—Length: About 3.8 mm. Diameter: About 2.2 mm.             Texture, upper and lower surfaces: Pubescent. Color, upper             surface: Close to 144B. Color, lower surface: Close to 144C. -   Flower description:     -   -   Flower arrangement and habit.—Single salverform flowers             arising from leaf axils; freely flowering habit with usually             about 500 flowers developing per plant; flowers face upright             or outwardly.         -   Fragrance.—None detected.         -   Natural flowering season.—Early flowering habit, plants of             the new Calibrachoa initiate and develop flowers about four             to five weeks after planting; plants flower continuously             from the spring throughout the summer in Germany.         -   Flower longevity.—Individual flowers last about seven to ten             days on the plant; flowers not persistent.         -   Flower diameter.—About 3.5 cm.         -   Flower length (height).—About 2.8 cm.         -   Flower throat diameter.—About 9 mm.         -   Flower tube length.—About 1.6 cm.         -   Flower tube diameter, base.—About 2 mm.         -   Flower buds.—Length: About 1.7 cm. Diameter: About 4.4 mm.             Shape: Elongated oblong. Texture: Pubescent. Color: Close to             153C and 152C.         -   Corolla.—Arrangement: Five petals fused at the base and             opening into a flared trumpet. Petal length from throat:             About 1.6 cm. Petal lobe width: About 1.8 cm. Petal shape:             Roughly spatulate. Petal apex: Rounded. Petal margin:             Entire. Petal texture, upper and lower surfaces: Smooth,             glabrous. Throat texture: Smooth, glabrous. Tube texture:             Smooth, glabrous. Color: Petal, when opening, upper surface:             Close to 171B; towards the base, close to 183A. Petal, when             opening, lower surface: Close to 171D. Petal, fully opened,             upper surface: Close to 173C; towards the base and venation,             close to 183B; main color becoming closer to 182C with             development. Petal, fully opened, lower surface: Close to             183D; venation, close to 183C. Throat: Close to 163B;             venation, close to 181B. Tube: Close to 163B; venation,             close to 181C.         -   Calyx.—Arrangement: Star-shaped calyx with five sepals;             sepals fused at the base. Sepal length: About 1 cm. Sepal             width: About 2.8 mm. Sepal shape: Lanceolate. Sepal apex:             Acute. Sepal margin: Entire. Sepal texture, upper and lower             surfaces: Pubescent. Sepal luster, upper and lower surfaces:             Matte. Color, upper surface: Close to 138A. Color, lower             surface: Close to 138B.         -   Peduncles.—Length: About 2.1 cm. Diameter: About 1.1 mm.             Angle: About 45° from stem axis. Strength: Moderately             strong. Texture: Pubescent. Color: Close to 143C.         -   Reproductive organs.—Stamens: Quantity: Six per flower.             Filament length: About 7 mm. Filament color: Close to 1C.             Anther shape: Ellipsoidal. Anther length: About 1.3 mm.             Anther color: Close to 6D. Pollen amount: Scarce. Pollen             color: Close to 9A. Pistils: Quantity: One per flower.             Pistil length: About 9.8 mm. Style length: About 7.8 mm.             Style color: Close to 144D. Stigma shape: Ellipsoidal.             Stigma color: Close to 144C. Ovary color: Close to 144C. -   Seeds and fruits: Seed and fruit development have not been observed     on plants of the new Calibrachoa. -   Garden performance: Plants of the new Calibrachoa have been observed     to have good garden performance and tolerate wind, rain and     temperatures ranging from about 5° C. to about 40° C. -   Pathogen & pest resistance: Plants of the new Calibrachoa have not     been observed to be resistant to pathogens and pests common to     Calibrachoa plants. 

It is claimed:
 1. A new and distinct Calibrachoa plant named ‘Duecahulgo’ as illustrated and described. 